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    1. Atlas
    2. Glossary
    3. Change freeze

    Operations

    Change freeze

    A change freeze is a period when a team stops or restricts releases and deployments, usually around a holiday, a sale, peak traffic or a time with too few people to watch production.

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    • Also called: code freeze, deployment freeze, release moratorium, blackout window

    Definition

    What is Change freeze?

    A change freeze is a period when a team stops or restricts releases and deployments, usually around a holiday, a sale, peak traffic or a time with too few people to watch production.

    A freeze trades speed for stability at the moments when a failure would cost most or be hardest to fix. Retailers freeze before a big sale, finance teams around the close, and most teams over holidays when few engineers are on hand.

    A good freeze is specific. It names a window in a time zone, the reason, which environments and projects it covers, and how strict it is: a warning, a block on deployments, a block on releases, or a full freeze where nobody can even create a release. Urgent fixes go through an exception that someone accountable approves.

    Atlas treats freezes as moratoriums linked to release management: a window can repeat every year or every week, warns or blocks at the level you choose, lets named release types such as hotfixes through, and records every exception request and decision.

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    Related reading

    • How to run a change freeze
    • Release management: the complete guide
    • IT change management guide
    • Work OS glossary

    FAQ

    Questions, answered.

    What is the difference between a code freeze and a change freeze?
    A code freeze usually stops merging new code into a branch. A change freeze is wider: it restricts releases and deployments to production, whatever the branch holds.
    How do you handle an urgent fix during a freeze?
    Through an exception: the requester states why the change cannot wait, an approver who did not request it decides, and the decision is recorded. Some teams also allow hotfix releases through with a warning.

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